Private provisions. The regulations of this chapter are not intended to interfere with or abrogate or annul any easement, covenant or other form of private agreement or restriction, provided that where the provisions of this chapter impose a greater restriction, the requirements of this chapter shall govern. Where the provisions of any easement, covenant or other form of private agreement or restriction imposes obligations, duties and/or requirements which are more restrictive and/or impose higher standards than the requirements of this chapter, and such private provisions are not inconsistent with the requirements of this chapter, then such private provisions shall be operative and supplemental to the requirements of this chapter.